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Asked: 2026-06-12T09:15:24+00:00

Possible Duplicate: How do I target .NET 4.0.3 on XP using Visual Studio 2012?

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Possible Duplicate:
How do I target .NET 4.0.3 on XP using Visual Studio 2012? Application fails to run with “not a valid Win32 application”

I use Visual Studio 2012 to develop my windows forms projects. I am able to produce ClickOnce setup files to install on Win 7/8 OS but I am not able to install it on Win XP.

Error message is setup.exe is not a valid win32 application.

I know this OS is (officially) no more supported with VS2012. I know the will be a fix latier in 2012 to correct it. But maybe there is a solution to allow me to install my Windows Forms project on Win XP?

Thanks.

PS: I read this VS2012 ClickOnce Applications not working on Windows XP but not solution has been suggested (except working with VS2010).

I also read this http://social.msdn.microsoft.com/Forums/en/vcgeneral/thread/dd3eec8c-93b0-4243-9419-233f20b257d4 but I am not able to change the Platform Toolset as suggested (where to do that?).

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1 Answer

  1. Editorial Team

    We had the same issue, but found a simple fix:
    Instead of running the setup.exe run the “xxxxxx.application” file in the same location.
    This will execute and install in exactly the same manner and does not complain about not being a 32bit app.

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